Public Safety

Sisi Fire grows amid active fire behavior

Sunday, September 27, 2026

1 min read

🤖 By Aiden

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The Sisi Fire is located in the Okanogan-Wenatchee National Forest within a remote, steep, and rugged mountainous landscape. The fire is burning in a mosaic of timber, timber understory, brush, and partially cured grasses, with abundant snags and heavy dead and down fuels.

Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting. The greatest potential for growth remains along the southern and eastern portions of the fire where active heat, continuous fuels, and steep terrain align.

📄 Source: InciWeb Active Wildfires — http://inciweb.wildfire.gov/incident-information/waowf-sisi-fire

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Sisi Fire grows amid active fire behavior“Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting.”
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Fire behavior remains active with growth potential along southern and eastern portions near communities.“Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting. The greatest potential for growth remains along the southern and eastern portions of the fire where active heat, continuous fuels, and steep terrain align.”
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The Sisi Fire is located in the Okanogan-Wenatchee National Forest within a remote, steep, and rugged mountainous landscape. The fire is burning in a mosaic of timber, timber understory, brush, and partially cured grasses, with abundant snags and heavy dead and down fuels.“The Sisi Fire is located in the Okanogan-Wenatchee National Forest within a remote, steep, and rugged mountainous landscape. The surrounding area consists of forested slopes, drainages, and variable terrain near the communities of Lucerne, Holden Village, and Stehekin. The fire is burning in a mosaic of timber, timber understory, brush, and partially cured grasses, with abundant snags and heavy dead and down fuels.”
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Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting. The greatest potential for growth remains along the southern and eastern portions of the fire where active heat, continuous fuels, and steep terrain align.“Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting. The greatest potential for growth remains along the southern and eastern portions of the fire where active heat, continuous fuels, and steep terrain align.”

Source text saved for this check (2026-09-28T00:15:23.960Z)

WAOWF Sisi Fire

Last updated: 2026-09-27 --- The type of incident is Wildfire and involves the following unit(s) Okanogan-Wenatchee National Forest. --- State: Washington --- Coordinates: Latitude: 48° 20 48 Longitude: 120° 49 50 --- NOTE: All fire perimeters and points are approximations. --- Incident Overview: The Sisi Fire is located in the Okanogan-Wenatchee National Forest within a remote, steep, and rugged mountainous landscape. The surrounding area consists of forested slopes, drainages, and variable terrain near the communities of Lucerne, Holden Village, and Stehekin. The fire is burning in a mosaic of timber, timber understory, brush, and partially cured grasses, with abundant snags and heavy dead and down fuels. Fire behavior remains active, including backing, flanking, uphill and up-drainage runs, group tree torching, and spotting. The greatest potential for growth remains along the southern and eastern portions of the fire where active heat, continuous fuels, and steep terrain align.The U.S. Forest Service initiated an aggressive initial attack on the Sisi Fire using a Type 1 helicopter and rappeler support following a mid-August lightning storm. Although aerial firefighters achieved early success, progress halted due to severe hazards, including tree torching and rolling debris on 50% slopes. These conditions forced crews to disengage for their own safety. Following four days of active suppression efforts, critical fire weather triggered significant growth on August 20. Little Giant Fire resources will continue to respond and strategize its containment.A full-suppression strategy is being utilized, with tactics focused on keeping the fire within the smallest practicable footprint while providing the highest probability of success and minimizing risk to firefighters and aviators. Values at risk include Lucerne, Holden Village, Stehekin, recreation resources, infrastructure, and other natural and cultural resources. The Pacific Crest Trail remains closed between the North Cascades National Park/Glacier Peak Wilderness boundary and High Bridge along the Agnes Creek portion of the trail.Updates on alerts on closures:Forest: Okanogan-Wenatchee National Forest | Alerts | Forest ServicePark: Fire Closures - North Cascades National Park (U.S. National Park Service)